40r-5r+7r=

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Solution for 40r-5r+7r= equation:


40r-5r+7r=0

We simplify the equation to the form, which is simple to understand 
40r-5r+7r=0

We move all terms containing r to the left and all other terms to the right. 
+40r-5r+7r=0

We simplify left and right side of the equation. 
+42r=0

We divide both sides of the equation by 42 to get r. 
r=0

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